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From: Brian L. Simonin <brian.simonin_at_ghg.net>
subject: Questions on the NSA and use of SELinux
Date: Tue, 25 Sep 2001 21:15:42 -0500
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  • Reply: Stephen Smalley: "Re: Questions on the NSA and use of SELinux"


I have a great respect for the NSA's mission and charter. In fact, I have thought several times of submitting my resume. I am also a recent convert to Linux and the open source agenda. Having Microsoft technology forced down your throat will do that to you. How much has SELinux (or Linux in general) proliferated into the operating system ranks of the NSA? Do they use it for hard computational needs or is it used as a toy or proof analysis only? I assume the NSA uses Solaris, AIX or some other Unix flavor for their critical applications. But a time is coming when Unix flavors may take a back seat to Linux. I have been intrigued at IBM's push of the Linux agenda (almost to the point that I see AIX taking a subservient role to Linux).  

On a secondary note, I noted that the an updated Kernel (2.4.10) just got released. What is the usual time delay from a new Kernel release to the incorporation into SELinux?  

Have a great day,  

Brian L. Simonin
Email: <mailto:brian.simonin@ghg.net> brian.simonin@ghg.net Voice: 281.286.4921
Cellular: 832.928.3481
Website: <http://www.ghg.net/simonin/> http://www.ghg.net/simonin/  

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From: Stephen Smalley <sds_at_tislabs.com>
subject: Re: Questions on the NSA and use of SELinux
Date: Wed, 26 Sep 2001 08:39:40 -0400 (EDT)
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  • In reply to: Brian L. Simonin: "Questions on the NSA and use of SELinux"

On Tue, 25 Sep 2001, Brian L. Simonin wrote:

> On a secondary note, I noted that the an updated Kernel (2.4.10) just
> got released. What is the usual time delay from a new Kernel release to
> the incorporation into SELinux?

Naturally, it varies depending on the nature and extent of the changes to the kernel. However, the time delay should typically be shorter now that we are using the LSM kernel patch, because Greg K-H typically tracks the kernel pre-releases as they occur and is able to update to new stable releases very quickly. I think that Greg updated the LSM kernel patch the same day that 2.4.10 was released (Sunday Sep 23rd), and we updated SELinux (internally) on Monday Sep 24th. A new release based on 2.4.10 should be available soon on the web site.

--
Stephen D. Smalley, NAI Labs
ssmalley@nai.com




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